12133234331 has 2 divisors, whose sum is σ = 12133234332. Its totient is φ = 12133234330.

The previous prime is 12133234327. The next prime is 12133234357. The reversal of 12133234331 is 13343233121.

It is an a-pointer prime, because the next prime (12133234357) can be obtained adding 12133234331 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12133234331 - 2² = 12133234327 is a prime.

It is a super-2 number, since 2×12133234331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12133234331.

It is not a weakly prime, because it can be changed into another prime (12133234031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066617165 + 6066617166.

It is an arithmetic number, because the mean of its divisors is an integer number (6066617166).

Almost surely, 2^12133234331 is an apocalyptic number.

12133234331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133234331 is an equidigital number, since it uses as much as digits as its factorization.

12133234331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 26.

Adding to 12133234331 its reverse (13343233121), we get a palindrome (25476467452).

The spelling of 12133234331 in words is "twelve billion, one hundred thirty-three million, two hundred thirty-four thousand, three hundred thirty-one".